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High-resolution DTI with 2D interleaved multislice reduced FOV single-shot diffusion-weighted EPI (2D ss-rFOV-DWEPI) by Eun-Kee Jeong; Seong-Eun Kim; Junyu Guo; Eugene G. Kholmovski; Dennis L. Parker is a Medicine article available to read on EtoBox.

What is High-resolution DTI with 2D interleaved multislice reduced FOV single-shot diffusion-weighted EPI (2D ss-rFOV-DWEPI) about?

## Abstract Diffusion tensor MRI (DTI), using single‐shot 2D diffusion weighted‐EPI (2D ss‐DWEPI), is limited to intracranial (i.c.) applications far from the sinuses and bony structures, due to the severe geometric distortions caused by significant magnetic field inhomogeneities at or near the tissue‐air or tissue‐bone interfaces. Reducing these distortions in single‐shot EPI by shortening the readout period generally requires a reduced field of view (and the potential of wraparound artifact) in the phase‐encoding direction and/or reduced spatial resolution. To resolve the problem, a novel 2D reduced FOV single‐shot diffusion‐weighted EPI (2D ss‐rFOV‐DWEPI) pulse sequence applicable for high resolution diffusion‐weighted MRI of local anatomic regions, such as brainstem, cervical spinal cord, and optic nerve, has been developed. In the proposed technique, time‐efficient interleaved acquisition of multiple slices with a limited FOV was achieved by applying an even number of refocusing 180° pulses with the slice‐selection gradient applied in the phase‐encoding direction. The two refocusing pulses used for each slice acquisition were separated by a short time interval (typically less

Who reads High-resolution DTI with 2D interleaved multislice reduced FOV single-shot diffusion-weighted EPI (2D ss-rFOV-DWEPI)?

Author

Eun-Kee Jeong; Seong-Eun Kim; Junyu Guo; Eugene G. Kholmovski; Dennis L. Parker

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0740-3194)

Published

2005

Language

EN

Field

Medicine (Health Sciences)